Wait until you find out the work experience of people consultancies send out to clients. It's often one experienced person with a bunch of grunts pumping out "work."
In a previous life I worked for a health insurance company that paid a million dollars to the Boston Consultancy Group on if we should use agile or not for development. The best part was seeing the half dozen or so people in our offices working so diligently to argue for something we were already doing, even better when speaking to these consultants they had zero experience programming or developing software.
I often wonder what it takes to win these contracts over McKinsey, Bain, BCG, Deloitte; because it sure feels like it's not aptitude that's the defining quality but more quasi-legal corruption.